Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 89 · 40 questions

What you do (Choose the right way): 1. Put cotton or cloth in the funnel, then layers of sand and small pebbles. 2. Stand the funnel in a clean glass. 3. Pour muddy water in slowly and watch what drips out. 4. Compare the colour before and after — never drink it — and wash your hands.

1. 1.🫗 How do we separate bad grains from rice? (a) evaporating (b) sieving (c) winnowing (d) handpicking
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a balloon (d) sand and pebbles
3. 3.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
4. 4.True or false: small stones from dal is done by handpicking. (a) True (b) False
5. 5.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) chaff from wheat grain (c) husk from rice grain (d) small stones from dal
6. 6.True or false: gravel from fine sand is done by filtering. (a) True (b) False
7. 7.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) no, germs may stay (c) yes, always (d) yes, if it is cold
8. 8.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is hot (c) clear water is salty (d) clear water is sweet
9. 9.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
10. 10.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) salt from sea water (c) husk from rice grain (d) chaff from wheat grain
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
12. 12.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
13. 13.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
14. 14.True or false: salt from sea water is done by evaporating. (a) False (b) True
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) sand and pebbles (d) turmeric powder
16. 16.🫗 How do we separate husk from rice grain? (a) sieving (b) filtering (c) evaporating (d) winnowing
17. 17.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
18. 18.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) False (b) True
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
21. 21.🫗 How do we separate small stones from dal? (a) evaporating (b) winnowing (c) handpicking (d) filtering
22. 22.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) cotton or cloth (c) a balloon (d) a battery cell
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) a battery cell
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) sand and pebbles (d) a magnet
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
28. 28.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
29. 29.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the water (d) the salt
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) muddy water (c) turmeric powder (d) a balloon
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the amount poured (c) the filter material
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) a clean glass (c) a funnel (d) muddy water
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) a funnel (c) a clean glass (d) cotton or cloth
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
38. 38.True or false: husk from rice grain is done by handpicking. (a) False (b) True
39. 39.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a battery cell (c) a funnel (d) a mirror
40. 40.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True

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